Fosi Audio IM4 Open-Back IEM Earphones, in Ear Monitor Wired Earbuds, 10mm Single Dynamic Driver, IEMs for Audiophiles, Gaming and Studio, 3.5mm 2-Pin 0.78mm Detachable Cables, N52 Dual Magnets
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Product details
| Management number | 209131902 | Release Date | 2026/03/29 | List Price | US$34.00 | Model Number | 209131902 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
- High-Fidelity Sound: The IM4 features a premium 10mm beryllium-coated diaphragm single dynamic driver for high resolution and natural three-band transition. The driver utilizes a dual-chamber structure and N52 dual-magnet circuit to deliver natural sound
- Spacious Soundstage: Featuring an open-back design, the IM4 delivers airy, wide-open playback for relaxed, fatigue-free listening. Instruments spread out nicely, and vocals don’t feel boxed in, making long sessions effortless
- Ergonomic & Lightweight: The IM4 is designed using a large ear-shape database to ensure it naturally conforms to your ear. With a smooth full-metal housing and weighing just 7g per bud, it delivers a comfortable, barely-there fit for all-day listening
- Family Design: Featuring Fosi Audio’s signature design language, the shell is crafted from full-aluminum alloy with precision CNC machining and detailed metal sand-blasting for a refined, smooth touch
- Customizable Sound: Includes three sets of ear tips (balanced, bass, deep-bass) of three sizes, and two types of nozzles (brass, aluminium alloy) for tailored tuning. With detachable 2-Pin 0.78 mm connectors, you can swap in your preferred cables also
| Color | BLACK |
|---|---|
| Brand Name | Fosi Audio |
| Model Name | IM4 |
| Manufacturer | FOSI AUDIO |
| Model Number | IM4-B |
| BuiltIn Media | User Manual |
| Earpiece Shape | Bud |
| Headphone Jack | 3.5 mm Jack |
| Frequency Range | 20Hz - 20,000Hz |
| Number of Items | 1 |
| Audio Driver Type | Dynamic Driver |
| Compatible Devices | Laptops, Desktops, Tablets, Telephones, Smart Speakers, Televisions, Car Audio Systems, Cellphones |
| Enclosure Material | Aluminum |
| Additional Features | Open-Back Design, Beryllium-Coated Driver, Customizable Sound |
| Warranty Description | 24 months |
| Age Range Description | Adult |
| Water Resistance Level | Not Water Resistant |
| Connectivity Technology | Wired |
| Headphones Ear Placement | In Ear |
| Specific Uses For Product | Gaming, Studio, Fitness |
| Headphone Folding Features | In Ear |
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